<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta http-equiv="X-UA-Compatible" content="ie=edge" />
    <title>计算器</title>
    <link rel="stylesheet" href="./css/demo02.css" />
</head>

<body>
    <div class="out">
        <div class="in">
            <input type="text" value="0" class="count" />
        </div>
        <table>
            <tr>
                <td class="ysf">%</td>
                <td class="pf ysf">平方</td>
                <td class="kf ysf">开方</td>
                <td class="ysf">/</td>
            </tr>
            <tr>
                <td class="number">7</td>
                <td class="number">8</td>
                <td class="number">9</td>
                <td class="ysf">*</td>
            </tr>
            <tr>
                <td class="number">4</td>
                <td class="number">5</td>
                <td class="number">6</td>
                <td class="ysf">-</td>
            </tr>
            <tr>
                <td class="number">1</td>
                <td class="number">2</td>
                <td class="number">3</td>
                <td class="ysf">+</td>
            </tr>
            <tr>
                <td class="clear">清空</td>
                <td class="number">0</td>
                <td class="number">.</td>
                <td class="result">=</td>
            </tr>
        </table>
    </div>
    <script src="./jquery-1.12.4.min.js"></script>
</body>

<html>

</html>

</html>